Home / 1,715.48-2,572.18-836.24

Finding the Fourth Proportional to 1,715.48, 2,572.18 and 836.24

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Solution

The fourth proportional to 1,715.48, 2,572.18 and 836.24 is: 1,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715.48 : 2,572.18 = 836.24 : x
  2. Step 2: Convert to fraction form
    1,715.48/2,572.18 = 836.24/x
  3. Step 3: Cross multiply
    1,715.48x = 2,572.18 × 836.24
  4. Step 4: Simplify right side
    1,715.48x = 2,150,959.80
  5. Step 5: Solve for x
    x = 2,150,959.80/1,715.48
  6. Step 6: Final answer
    x = 1,253.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.